code: def small_data():
      rs = np.random.RandomState([2389280, 238901, 382908031])
      mod = ZeroMean(
          None, volatility=GARCH(), distribution=Normal(seed=rs)
      )
      sim = mod.simulate(
          [1e-3, 0.05, 0.90], initial_value_vol=1e-3 / 0.05, nobs=1000
      )
      return sim.data
  
file_path: arch/arch/tests/univariate/test_rescale.py
imports: import numpy
  from numpy.testing import assert_allclose
  import pandas
  import pytest
  from arch.univariate import GARCH, Normal, ZeroMean
label_desc: Use image node_id 1 for calling a global function with example usage: small_data() and returns: sim